import java.util.Scanner;

public class text2 {
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
//        int red = sc.nextInt();
//        int yellow = sc.nextInt();
//        int green = sc.nextInt();
//        if (red == 1) {
//            System.out.println("Stop!Stop!Stop!");
//        }
//        if (yellow == 1) {
//            System.out.println("Please wait!");
//        }
//        if(green == 1) {
//            System.out.println("Go!Go!Go!");
//        }
//    }
        boolean red = sc.nextBoolean();
        boolean yellow = sc.nextBoolean();
        boolean green = sc.nextBoolean();
        if (red) {
            System.out.println("Stop!Stop!Stop!");
        }
        if (yellow) {
            System.out.println("Please wait!");
        }
        if (green) {
            System.out.println("Go!Go!Go!");
        }
    }
}
